Last updated: June 2, 2025
In Tsalgar, Mongolia, awareness of the UV Index is crucial for protecting your skin and overall health from the sun's harmful rays. Understanding UV levels helps residents and visitors alike prevent sunburns and long-term skin damage, especially during peak hours when the index reaches a striking 9 around midday. With a BSk climate characterized by dry, sunny days, Tsalgar presents unique exposure risks, making it essential to stay informed and take necessary precautions under the sun.
The UV Index peaks significantly throughout the day, starting with a low 1 at 07:00 and rapidly climbing as the sun rises. By 10:00, it reaches 6, indicating a moderate risk for harm, which escalates sharply to a high of 9 between 12:00 and 13:00. This substantial index signifies that precautions are necessary, especially with the sun at its strongest. As the afternoon progresses, the UV Index gradually declines, dipping to 5 by 16:00, and further tapering off to a mere 1 by 19:00. For those outdoors, staying protected during the peak hours is critical for skin health!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 5 | moderate | 30 min |
| 17:00 | 3 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
Throughout the year, the UV Index experiences significant fluctuations, indicating varying levels of sun exposure risk. From January to March, the UV Index rises gradually from 2 to 5, classified as low to moderate risk, where burn times range from 30 to 45 minutes. As we transition into April, May, June, July, and August, the UV Index peaks at 9, falling in the very high category, where the burn time reduces to just 15 minutes—making these months particularly high-risk for sunburn. September marks a decrease to 6 (high exposure), with a burn time of 25 minutes, while October to December returns to lower UV levels, with indices of 4, 2, and 1, respectively, allowing for longer burn times of 30 to 45 minutes. Visitors and residents should remain vigilant, especially during the high-risk summer months, by wearing sun protection and limiting sun exposure, particularly between 10 AM and 4 PM.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Darhan UVI | 1 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Erdenet UVI | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Tsalgar | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
| Ulan Bator UVI | 2 | 3 | 5 | 7 | 9 | 9 | 9 | 9 | 6 | 4 | 3 | 1 |
| OElgii UVI | 2 | 3 | 5 | 7 | 10 | 9 | 9 | 9 | 7 | 5 | 2 | 1 |
| Khovd UVI | 2 | 3 | 6 | 7 | 10 | 10 | 9 | 9 | 7 | 5 | 2 | 1 |